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* Layers by native code vs. by Lua
@ 2011-01-25 12:53 Procházka Lukáš Ing. - Pontex s. r. o.
  2011-01-25 13:37 ` Hans Hagen
  0 siblings, 1 reply; 6+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2011-01-25 12:53 UTC (permalink / raw)
  To: ConTeXt

[-- Attachment #1: Type: text/plain, Size: 1337 bytes --]

Hello,

a weird thing happens when setting up layers - I'm getting different results depending on whether setup is performed by native Ctx code or by Lua:

---
\setuppapersize[A4,landscape][A4,landscape]
\setuplayout[page]

\definelayer[T][x=10mm,y=0mm]

\startuseMPgraphic{VerticalRule}
   draw (0,0)--(0,PaperHeight) withcolor red;
\stopuseMPgraphic

\startsetups S1
   \setlayer[T]{\useMPgraphic{VerticalRule}}
\stopsetups

\startluasetups S2
   \startluacode
     context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
   \stopluacode
\stopluasetups

\starttext
   \setupbackgrounds[page][setups=S1,background={T}]
   \page[empty]
   \setupbackgrounds[page][setups=S2,background={T}]
   \page[empty]
\stoptext
---

Both setups (S1 and S2) should do the same - to draw a vertical line to the full height.

The first case (S1) is OK - the line starts 10 mm from the top left corner of the page.

The second case (S2) is somehow shifted - the line starts cca 13 mm from the top left corner of the page.

What is the reason? And how to make Lua way give the same result?

Best regards,

Lukas


-- 
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o.      [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4

Tel: +420 244 062 238
Fax: +420 244 461 038

[-- Attachment #2: t-Bkg2.mkiv --]
[-- Type: application/octet-stream, Size: 571 bytes --]

\setuppapersize[A4,landscape][A4,landscape]
\setuplayout[page]

\definelayer[T][x=10mm,y=0mm]

\startuseMPgraphic{VerticalRule}
  draw (0,0)--(0,PaperHeight) withcolor red;
\stopuseMPgraphic

\startsetups S1
  \setlayer[T]{\useMPgraphic{VerticalRule}}
\stopsetups

\startluasetups S2
  \startluacode
    context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
  \stopluacode
\stopluasetups

\starttext
  \setupbackgrounds[page][setups=S1,background={T}]
  \page[empty]
  \setupbackgrounds[page][setups=S2,background={T}]
  \page[empty]
\stoptext

[-- Attachment #3: t-Bkg2.pdf --]
[-- Type: application/pdf, Size: 4766 bytes --]

[-- Attachment #4: Type: text/plain, Size: 486 bytes --]

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: Layers by native code vs. by Lua
  2011-01-25 12:53 Layers by native code vs. by Lua Procházka Lukáš Ing. - Pontex s. r. o.
@ 2011-01-25 13:37 ` Hans Hagen
  2011-01-25 13:40   ` luigi scarso
  0 siblings, 1 reply; 6+ messages in thread
From: Hans Hagen @ 2011-01-25 13:37 UTC (permalink / raw)
  To: mailing list for ConTeXt users

On 25-1-2011 1:53, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
> Hello,
>
> a weird thing happens when setting up layers - I'm getting different
> results depending on whether setup is performed by native Ctx code or by
> Lua:
>
> ---
> \setuppapersize[A4,landscape][A4,landscape]
> \setuplayout[page]
>
> \definelayer[T][x=10mm,y=0mm]
>
> \startuseMPgraphic{VerticalRule}
> draw (0,0)--(0,PaperHeight) withcolor red;
> \stopuseMPgraphic
>
> \startsetups S1
> \setlayer[T]{\useMPgraphic{VerticalRule}}
> \stopsetups
>
> \startluasetups S2
> \startluacode
> context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
> \stopluacode
> \stopluasetups
>
> \starttext
> \setupbackgrounds[page][setups=S1,background={T}]
> \page[empty]
> \setupbackgrounds[page][setups=S2,background={T}]
> \page[empty]
> \stoptext
> ---
>
> Both setups (S1 and S2) should do the same - to draw a vertical line to
> the full height.
>
> The first case (S1) is OK - the line starts 10 mm from the top left
> corner of the page.
>
> The second case (S2) is somehow shifted - the line starts cca 13 mm from
> the top left corner of the page.
>
> What is the reason? And how to make Lua way give the same result?

lua setups are already lua so S2 should look different

\startsetups S1
   \setlayer[T]{\useMPgraphic{VerticalRule}}
\stopsetups

\startluasetups S2
     context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
\stopluasetups

the problem is that setups=* does not know about this ... so you should 
use:

\startsetups S3
     \luasetup{S2}
\stopsetups

\starttext
   \setupbackgrounds[page][setups=S1,background={T}]
   \page[empty]
   \setupbackgrounds[page][setups=S3,background={T}]
   \page[empty]
\stoptext

I have to think about a solution for this.

Hans


-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: Layers by native code vs. by Lua
  2011-01-25 13:37 ` Hans Hagen
@ 2011-01-25 13:40   ` luigi scarso
  2011-01-25 15:31     ` Hans Hagen
  0 siblings, 1 reply; 6+ messages in thread
From: luigi scarso @ 2011-01-25 13:40 UTC (permalink / raw)
  To: mailing list for ConTeXt users

2011/1/25 Hans Hagen <pragma@wxs.nl>:
> On 25-1-2011 1:53, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
>>
>> Hello,
>>
>> a weird thing happens when setting up layers - I'm getting different
>> results depending on whether setup is performed by native Ctx code or by
>> Lua:
>>
>> ---
>> \setuppapersize[A4,landscape][A4,landscape]
>> \setuplayout[page]
>>
>> \definelayer[T][x=10mm,y=0mm]
>>
>> \startuseMPgraphic{VerticalRule}
>> draw (0,0)--(0,PaperHeight) withcolor red;
>> \stopuseMPgraphic
>>
>> \startsetups S1
>> \setlayer[T]{\useMPgraphic{VerticalRule}}
>> \stopsetups
>>
>> \startluasetups S2
>> \startluacode
>> context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
>> \stopluacode
>> \stopluasetups
>>
>> \starttext
>> \setupbackgrounds[page][setups=S1,background={T}]
>> \page[empty]
>> \setupbackgrounds[page][setups=S2,background={T}]
>> \page[empty]
>> \stoptext
>> ---
>>
>> Both setups (S1 and S2) should do the same - to draw a vertical line to
>> the full height.
>>
>> The first case (S1) is OK - the line starts 10 mm from the top left
>> corner of the page.
>>
>> The second case (S2) is somehow shifted - the line starts cca 13 mm from
>> the top left corner of the page.
>>
>> What is the reason? And how to make Lua way give the same result?
>
> lua setups are already lua so S2 should look different
>
> \startsetups S1
>  \setlayer[T]{\useMPgraphic{VerticalRule}}
> \stopsetups
>
> \startluasetups S2
>    context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
> \stopluasetups
>
> the problem is that setups=* does not know about this ... so you should use:
>
> \startsetups S3
>    \luasetup{S2}
> \stopsetups
>
> \starttext
>  \setupbackgrounds[page][setups=S1,background={T}]
>  \page[empty]
>  \setupbackgrounds[page][setups=S3,background={T}]
>  \page[empty]
> \stoptext
>
> I have to think about a solution for this.
lua:setups =S2
ctx:setups =S1
setups = ctx:setups
 ?
-- 
luigi
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: Layers by native code vs. by Lua
  2011-01-25 13:40   ` luigi scarso
@ 2011-01-25 15:31     ` Hans Hagen
  2011-01-25 15:43       ` Procházka Lukáš Ing. - Pontex s. r. o.
  0 siblings, 1 reply; 6+ messages in thread
From: Hans Hagen @ 2011-01-25 15:31 UTC (permalink / raw)
  To: mailing list for ConTeXt users

On 25-1-2011 2:40, luigi scarso wrote:
> 2011/1/25 Hans Hagen<pragma@wxs.nl>:
>> On 25-1-2011 1:53, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
>>>
>>> Hello,
>>>
>>> a weird thing happens when setting up layers - I'm getting different
>>> results depending on whether setup is performed by native Ctx code or by
>>> Lua:
>>>
>>> ---
>>> \setuppapersize[A4,landscape][A4,landscape]
>>> \setuplayout[page]
>>>
>>> \definelayer[T][x=10mm,y=0mm]
>>>
>>> \startuseMPgraphic{VerticalRule}
>>> draw (0,0)--(0,PaperHeight) withcolor red;
>>> \stopuseMPgraphic
>>>
>>> \startsetups S1
>>> \setlayer[T]{\useMPgraphic{VerticalRule}}
>>> \stopsetups
>>>
>>> \startluasetups S2
>>> \startluacode
>>> context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
>>> \stopluacode
>>> \stopluasetups
>>>
>>> \starttext
>>> \setupbackgrounds[page][setups=S1,background={T}]
>>> \page[empty]
>>> \setupbackgrounds[page][setups=S2,background={T}]
>>> \page[empty]
>>> \stoptext
>>> ---
>>>
>>> Both setups (S1 and S2) should do the same - to draw a vertical line to
>>> the full height.
>>>
>>> The first case (S1) is OK - the line starts 10 mm from the top left
>>> corner of the page.
>>>
>>> The second case (S2) is somehow shifted - the line starts cca 13 mm from
>>> the top left corner of the page.
>>>
>>> What is the reason? And how to make Lua way give the same result?
>>
>> lua setups are already lua so S2 should look different
>>
>> \startsetups S1
>>   \setlayer[T]{\useMPgraphic{VerticalRule}}
>> \stopsetups
>>
>> \startluasetups S2
>>     context.setlayer({"T"}, "\\useMPgraphic{VerticalRule}")
>> \stopluasetups
>>
>> the problem is that setups=* does not know about this ... so you should use:
>>
>> \startsetups S3
>>     \luasetup{S2}
>> \stopsetups
>>
>> \starttext
>>   \setupbackgrounds[page][setups=S1,background={T}]
>>   \page[empty]
>>   \setupbackgrounds[page][setups=S3,background={T}]
>>   \page[empty]
>> \stoptext
>>
>> I have to think about a solution for this.
> lua:setups =S2
> ctx:setups =S1
> setups = ctx:setups

that is is somewhat fuzzy as we can have xml:blabla where xml is a 
namespace so one would need xml:xml:blabla then

i have a patch now that handles

   \setupbackgrounds[page][setups=S1,background={T}]
   \setupbackgrounds[page][setups=lua(S2),background={T}]
   \setupbackgrounds[page][setups=S3,background={T}]
   \setupbackgrounds[page][setups={S1,lua(S2),S3},background={T}]

a bit analogue to references

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: Layers by native code vs. by Lua
  2011-01-25 15:31     ` Hans Hagen
@ 2011-01-25 15:43       ` Procházka Lukáš Ing. - Pontex s. r. o.
  2011-01-25 18:05         ` Hans Hagen
  0 siblings, 1 reply; 6+ messages in thread
From: Procházka Lukáš Ing. - Pontex s. r. o. @ 2011-01-25 15:43 UTC (permalink / raw)
  To: mailing list for ConTeXt users

On Tue, 25 Jan 2011 16:31:24 +0100, Hans Hagen <pragma@wxs.nl> wrote:

> i have a patch now that handles
>
>    \setupbackgrounds[page][setups=S1,background={T}]
>    \setupbackgrounds[page][setups=lua(S2),background={T}]
>    \setupbackgrounds[page][setups=S3,background={T}]
>    \setupbackgrounds[page][setups={S1,lua(S2),S3},background={T}]
>
> a bit analogue to references
>
> Hans


This looks nice; I suppose it will be available in the next beta.

Thanks again.

Cheers,

Lukas


-- 
Ing. Lukáš Procházka [mailto:LPr@pontex.cz]
Pontex s. r. o.      [mailto:pontex@pontex.cz] [http://www.pontex.cz]
Bezová 1658
147 14 Praha 4

Tel: +420 244 062 238
Fax: +420 244 461 038

___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: Layers by native code vs. by Lua
  2011-01-25 15:43       ` Procházka Lukáš Ing. - Pontex s. r. o.
@ 2011-01-25 18:05         ` Hans Hagen
  0 siblings, 0 replies; 6+ messages in thread
From: Hans Hagen @ 2011-01-25 18:05 UTC (permalink / raw)
  To: mailing list for ConTeXt users

On 25-1-2011 4:43, Procházka Lukáš Ing. - Pontex s. r. o. wrote:
> On Tue, 25 Jan 2011 16:31:24 +0100, Hans Hagen <pragma@wxs.nl> wrote:
>
>> i have a patch now that handles
>>
>> \setupbackgrounds[page][setups=S1,background={T}]
>> \setupbackgrounds[page][setups=lua(S2),background={T}]
>> \setupbackgrounds[page][setups=S3,background={T}]
>> \setupbackgrounds[page][setups={S1,lua(S2),S3},background={T}]
>>
>> a bit analogue to references
>>
>> Hans
>
>
> This looks nice; I suppose it will be available in the next beta.

yes,

% setups=S1
% setups=lua(S2)
% setups=S3
% setups={S1,lua(S2),xml(test{123}),S3}

so the xml setup takes an argument

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
     tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com
                                              | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________


^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-01-25 18:05 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-01-25 12:53 Layers by native code vs. by Lua Procházka Lukáš Ing. - Pontex s. r. o.
2011-01-25 13:37 ` Hans Hagen
2011-01-25 13:40   ` luigi scarso
2011-01-25 15:31     ` Hans Hagen
2011-01-25 15:43       ` Procházka Lukáš Ing. - Pontex s. r. o.
2011-01-25 18:05         ` Hans Hagen

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